Update CITATION.cff

CITATION.cff

@@ -8,11 +8,21 @@ message: >-
   metadata from this file.
 type: software
 authors:
-  - given-names: Niklas
-    family-names: Selke
-    email: n.selke@fz-juelich.de
-    affiliation: Forschungszentrum Jülich
-    orcid: 'https://orcid.org/0000-0002-9954-2250'
+- email: n.selke@fz-juelich.de
+  orcid: https://orcid.org/0000-0002-9954-2250
+  family-names: Selke
+  given-names: Niklas
+- email: m.schultz@fz-juelich.de
+  orcid: https://orcid.org/0000-0003-3455-774X
+  family-names: Schultz
+  given-names: Martin
+  affiliation: Forschungszentrum Jülich
+contact:
+- email: m.schultz@fz-juelich.de
+  orcid: https://orcid.org/0000-0003-3455-774X
+  family-names: Schultz
+  given-names: Martin
+  affiliation: Forschungszentrum Jülich
 repository-code: >-
   https://gitlab.jsc.fz-juelich.de/esde/toar-public/toarstats
-license: MIT
\ No newline at end of file
+license: MIT